Weft-replenishing mechanism for looms.



1 W. WILLIAMSON & J. ooLLmsou.

WEPT REPLENISHING MECHANISM FOR LOOMS.

APPLIUATION FILED MAY 7, 1904.

' Patented Sept. 29, 1908.

2 SHEETS-SHEET 1.

WITNESSES. i INZENTORSQ QAYQMMMJLDQ gig W W. WILLIAMSON'GK J. GOLLINSON.

WEPT' REPLENISHING MECHANISM FOB LOOMS. APPL'IOA IOK FILED MAY 7-, 1904.

899,586. V A Patented Sept. 29, 1908.

2 SHEETS-SHEET 2.

D -oL A UNITED PATENT OFFICE.

WILLIAM WILLIAMSON AND JOHN GOLLINSON, OF MANCHESTER, ENGLAND.

WEFT-REIPLENISHING MECHANISM FOR LOOMS.

Specification of Letters Patent.

Patented Sept. 29, 1908.

Application filed. May 7,, 1904. Serial No. 206,958.

or absence of weft, and is designed to provide a simple and effectivemechanism for discharging or ejecting the spent shuttles from theshuttle box, and for supplying fresh shuttles thereto.

It consists essentially (1) in constructing the shuttle box with anopening in the front, sufliciently wide to admit the shuttle, and asliding front divided into two arts, one part or both parts movingvertical y to "admit the shuttle through the opening, and closing againto retain the shuttle in position during working; (2) a pivoted orswiveling lever in the shuttle race capable of being turned across theshuttle race to divert the shuttle from its path, and eject the shuttledown an inclined chute placed at the side; (3) and mechanism foroperating the ejecting lever and for operating the pusher which forcesthe fresh shuttle into the shuttle box operated by the forward movementof the slay, when the shuttle is nearly exhausted, or the weft yarnbreaks. 9

The invention will be fully described with reference to the accompanyingdrawings, in which sufficient of a loom is shown to illustrate theinvention.

Figure 1. perspective view of the several parts which constitute theinvention shown in relative positions. Fig. 2. transverse sectionthrough the slay and breast beam of the loom showing the operative partsof the invention in normal working position at the beat up of the slay.Fig. 3. detail section through the shuttle box and shuttle magazine,after the ,beat up of the slay as in Fig. 2.

The slay A, the reed A the breast beam A the weft hammer W, and theparts of the loom not shown in the drawings are all of the usualconstruction and operated in the usual way.

The shuttle box D at one end of the loom, is constructed with the backand bottom of the usual form, and with the front in two parts (1 d, witha space d between them through which a shuttle B can be passed into theshuttle box. The s ace-cl is not sufiiciently wide when in wor g ornormal position to admit the shuttle, and therefore one of the parts,preferably the bottom front part (1, is made to move or slide verticallyownwards to receive the shuttle B, and upwards again to retain theshuttle in position in the shuttle box when working. The part dis heldin position by the springs (1 against the ressure of which it is moveddownwar s, and by which it is raised again when the shuttle is passedthrough (see Fig. 3).

The lower part (1 and the upper part 01 of the shuttle box'front areprovided with inclined projections or lugs b b which direct (or guide),the shuttle B between them, and serve to press the movable part (idownwards to admit the shuttle as it is forced forward by a pusher C,and the upper part is also provided with a strip (1 to prevent theshuttle turning over.

The shuttles B are stored in a magazine 0, erected on the breast beam Ain front of the shuttle box D, and the shuttles are delivered therefromto the shuttle box as required by the reciprocating slide or pusher C.

At or near the front edge of the mouth of the shuttle box D, a turningor switch lever E is placed. This lever can be pivoted to be drawndiagonally across the shuttle race (see Fig. 1), for the purpose ofpreventing the shuttle entering the shuttle box D, and ejecting thespent shuttle from the loom. Or the lever may be placed in a diagonalslot and raised vertically into the path of the shuttle. The shuttle isdeflected into a chute with an inclined bottom afiixed to the front ofthe slay A, down which the shuttle travels into a suitable receptacle.The chute is open at one side and is placed in front of the shuttle raceinclined towards the end of the slay to deliver the shuttle, theposition in front of the slay and shuttle race being such as not to becaught between the slay and the breast beam.

The turning or switch lever E, is pivoted at one end, and the other endis free to be drawn or moved horizontally across the shuttle'race. Themovement of the switch lever E is effected by a lever E connected to itby a cord or band passing over a grooved pulley c rotating on a studaffixed to the slay, the lever being pivoted tothe front of g in Fig. 1.the lever II falls and the hook 7b tail piece h at the other. The hookedlever E may be connected direct to the switch I lever E, by a link bywhich it is moved across l the shuttle race as the lever is drawnforward by the hook H, the lever E being pushed back by a spring andpusher. In a modification the switch lever is set in a slot and raisedby an arm, attached to the lever E placed below an incline on theunderside of the switch lever. The movement given to the switch lever Eto eject the spent shuttle from the loom, and the movement given to thepusher C to project a fresh shuttle into the shuttle box, are obtaineddirect from the oscillating movement of the slay A, the parts beingbrought into operative position to engage the slay by the movement of arod G, rocked by the movement of the weft hammer W.

Pivoted below the rod G, is a hooked lever H with a hook h at one end,and a projecting H projects through a slot 0 in the lever E and the hookit is held up out of contact or engagement with the edge of the slot orpin a by the finger g on the rocking rod G, depressing the tail pieceit. (See Fig. 2.) Vhen the rod is rocked to the position shown engagesthe lever E. As the slay recedes the lever E is held by the hook,causing the switch lever E to be drawn across the shuttle race to ejectthe shuttle. A bell crank lever K is pivoted to a bracket below the slayone arm of which lever rests against the lever E and the other arm undera lever M. The movement of the lever E moves the bell crank lever K, andbrings the pin is under the lower side of a lever M of irregular shape,and lifts it into the path of the slay A, so that at the next forwardstroke or "beat up the slay comes into contact with the lever M, andcarries it along with it.

The lever M is connected to a horizontal lever m which at its other endis connected with the pusher C, so that each time the lever M is forcedalong by the slay, the pusher C is propelled in the reverse direction tomeet the advancing shuttle box D, and propel a shuttle B from themagazine into the shuttle box. The pusher C and levers M and m are drawnback again when the slay recedes by the spring connected to the lever mby a band. Thus, by the turning or rocking of the shaft G, the mechanismto eject the spent shuttle is first set in motion, and thereby themechanism to insert a fresh shuttle into the shuttle box is subsequentlyoperated, so that a fresh shuttle cannot be inserted before the otherhas been ejected.

The rocking'rod G extends along the front of the loom, and is operatedfrom the weft hammer W when the weft breaks or is absent. The rod G atthe weft fork end carries a-projecting arm or finger g, upon which arocking lever N is pivoted which can be raised. into the path of theweft hammer by any suitable mechanism, andwhen it is so raised the wefthammer rocks the shaft (i, and by moving the finger g brings the shuttlechanging mechanism into operating position. The pivoted rocking lever Nof the rocking rod G may be brought into operation by a lever orotherwise when the yarn is nearly exhausted in the shuttle.

If it is desired to change the shuttle when the yarn is broken orabsent, this can be done by connecting the upright -linger of therocking shaft Gwith thehorizontal lever, by means of a bracket, so thateach time the weft fork to engages the weft hammer IV, the shaft G isrocked and the shuttle changing mechanism brought into operation. Anotch is cut out of the lever so as to clear the knocking oil' handleand not stop the loom.

hat we claim as our invention and desire to protect by Letters Patentis 1. In weft replenishing mechanism for looms, the combination with theloom slay A, the reed A, the breast beam A", a shuttle magazine Cmounted on the breast beam, and shuttle box D, of a pusher t slidingupon guides to propel the shuttle, a shuttle box front in two parts (Z(1 provided with a space d between them through which the shuttle isinjected, means for positioning the shuttle pusher C to be operated bythe slay and means for ejecting the spent shuttle.

2. In weft replenishing mechanism for looms, the con'ibination with thebreast beam A a shuttle magazine (3 mounted. thereon a pusher C andmechanism for posi tioning the shuttle pusher C to be operated. by theslay of the shuttle box D, the front plate (1 fitted thereto, the frontplate (I mounted on brackets with a space (1 between the said plates andcapable of sliding up and down, the springs d to retain the plate innormal position.

3. In weft replenishing mechanism for looms, the combination with theloom slay A,

the reed A, the breast beam A a shuttle magazine C mounted on the breastbeam, and shuttle box D, of a pusher sliding upon guides to propel theshuttle, a shuttle box front in two parts (Z d provided with a space (Zbetween them through which. the shuttle is injected, means forpositioning the shuttle pusher C to be operated by the slay and a switchlever E placed diagonally across the slay A in front of the shuttle boxto move horizontally to deflect the spent shuttle and eject it from theloom.

4. In weft replenishing mechanism for looms, the combination with theloom slay A, the reed A, the breast beam A .a shuttle 1 magazine Cmounted on the breast beam, and shuttle box D, of a pusher C slidingupon guides to propel the shuttle, a shuttle box front in two parts (Z dprovided with a space (Z between them through which the shuttle isinjected, means for positionin the shuttle pusher C to be operated bythe s ay, a diagonal switch lever on a vertical pivot, on the slay todeflect and eject the spent shuttle, means by which the oscillatingmovement of the slay operates the pusher and deflector, and means forthrowing such mechanism into operation on the failure of the weftthread.

5. In weft replenishing mechanism the combination with the shuttlemagazine 0 usher O, and deflecting lever E, of a pivoted ever mconnected to the pusher, and operat ing lever M connected with thepusherleve'r m an operating lever E connected with the deflecting leverE to move it into the path of the shuttle, a hooked lever -II engagingwith the operating lever E, a connecting lever K to connect the lever Ewith the lever M to raise the latter into the path of the slay, alongitudinal shaft G, a fingerg on one end to engage the hooked lever H,and a finger g on the opposite end to engage the weft stop motion.

6. In weft replenishing mechanism, the mechanism'for controlling theoperation of the shuttle injector and the shuttle ejector, comprising alongitudinal bar G oscillated by the weft stop motion on the failure ofthe weft thread, a finger on one, a hooked lever, controlled by a fingeron said bar, an operating lever caught by the hook and held against thebackward movement of the slay to move the shuttle ejecting lever, and asecond lever simultaneously lifted into the path of the slay, andoperated by the next forward movement of the slay to inject a freshshuttle into the shuttle box.

7. In weft replenishing mechanism for looms, the combination with a rodrocked by the weft stop motion on the failure of the weft, of a leverpivoted to the slay which is drawn back as the slay recedes a shuttleejector operatedthereby, and a second lever pivoted to the loom framewhich is raised and pushed forward by the advancing slay and shuttleinjector operated thereby substantially as described.

8. In weft re lenishing mechanism, the combination wit the weft stopmotion, of a rock shaft, a hooked lever on a fixed pivot which is raisedor lowered as the shaft rocks and a lever pivoted to the slay with whichthe hook engages and a shuttle ejector operated by said lever as theslay recedes, substantially as described.

In witness whereof, we have hereunto signed our names in the presence oftwo subscribing witnesses.

WILLIAM WILLIAMSON. JOHN COLLINSON.

Witnesses:

J. OWDEN OBRIEN, H. BARNFATHER.

